noun, verb ·Rare ·Advanced level

Definitions

Noun

1. 1
   A current running against the main current of a stream; an eddy.

Verb

1. 1
   To flow in a direction opposing the current or the intended direction. intransitive

Etymology

From back + stream.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.